LATERAL ELASTIC INSTABILITY OF HAT-SECTION STRINGERS UNDER COMPRESSIVE LOAD

摘要

A strain-energy method is presented for computing the compressive load for lateral elastic instability of hat-section stringers of simple cross section whose side walls and tops are flat and of constant thick ness. Buckling stresses for such stringers having five different shapes and a range of lengths were computed by this method. The results con firm an opinion which is already widely held, namely, that lateral instability is an unlikely cause of failure for hat-section stringers.